Abstract: Objective To measure the reproductive performance of outbred Wuzhishan minipigs (WZSP). Methods All reproductive performances were determined according to national and industry standards. The statistical analyses were performed by the SAS soft. Results The reproductive behavior parameters of WZSP were stable and the females showed early sexual maturity. There were some differences between birth frequence and born and survival number of the generations, but most of the differences were not obvious. Correlation analysis showed that there were negative correlations between birth survival number & body weight of outbred WZSP, which were enhanced with the increase of birth frequencies. Conclusion WZSP exhibited higher reproduce performance and dressing percentage. And as experimental animals, WZSP will show a better value. Some differences in coefficient of variation showed us further more work on seed selection and purify.

Key words: Outbred Wuzhishan minipigs, Reproductive performance, Statistical analysis